When shopping for electrical test & measurement tools you will often come across category designations from I – IV. These can be confusing or lead you to think that you need to look for a certain category, or that one is better than another. In terms of application, that might be correct.
Therefore there are four primary measurement categories for electrical tools: CATI, CATII, CATIII, and CAT IV. Measurement Categories are used to rate test instruments on their ability to resist a voltage spike, which is applied through a specific resistance.
Electrical engineering Mcqs for Preparation of Job Test and interview, freshers, Students, competitive exams etc. Multiple choice questions here are on topics such as Electrical Machines, Power Electronics, Electrical measurement & units, Utilization of Electrical Energy, Basic Electrical Engineering, Electrical Installation, Power Systems, Test...